1、 55508null2013 IEC 60534Industrial process control valves Part 2-1, 2-3, 2-4, 4(NEQ)ISO 4126-1:2004 Safety devices for protection against excessive pressure Part 1: Safety valves(NEQ) 555082013II1 - - ( ) 2 259 3 - 20 2013 . 527-4 0292006 . . :- 60534-2-1:2011 . 2-1. - . (IEC 60534-2-1:2011 Industri
2、al process control valves Part 2-1: Flow capacity Sizing equations for flow under installed condition, NEQ);- 60534-2-3:1997 . 2-3. - . (IEC 60534-2-3:1997 Industrial process control valves Part 2-3: Flow capacity Test Procedures, NEQ); - 60534-2-4:2009 . 2-4. - . (IEC 60534-2-4:2009 Indus-trial pro
3、cess control valves Part 4: Flow capacity Inherent flow characteristics and range ability, NEQ);- 60534-4:2006 . 4. (IEC 60534-4:2006 Industrial process control valves Part 4: Inspection and routine testing, NEQ);- 4126-1:2004 . 1. (ISO 4126-1:2004 Safety devices for protection against excessive pre
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5、8.56897 . - . 8573-12005 . 1. 527202007 . 534022009 . 12.2.0852002 , . . - 128932005 , . 1650481 . . 1743380 . . - , 1 , . , - , 555082013 Pipeline valves.Technique of the experimental definitions hydraulic and cavitation characteristics 5550820132 . , , (). , , - , , , . , , , , .3 , 3.1 52720, 128
6、93, 16504, :3.1.1 : , .3.1.2 : - , . . 527202007, 6.73.1.3 : , -. 527202007, 6.93.1.4 : - KVmax KVmin, .3.1.5 : , - . 527202007, 5.273.1.6 : , - .3.1.7 -: , .3.1.8 -: , - , .3.1.9 : , - .3.1.10 ( ) : -, - , Qf P=() . .3.1.11 Km: , - Pm, - , - .3.1.12 1: , . 527202007, 6.34 55508201333.1.13 2: - - ,
7、. 527202007, 6.353.1.14 : ( ) . 1 , ( ) DN. 2 -, 10 % () .3 . 3.1.15 Pm: , - .3.1.16 : , 1.3.1.17 : () .3.1.18 KV, 3/: , 1000 /3, 0,1 (1 /2). 527202007, 6.403.1.19 G, /: - .3.1.20 KKVVy: . 527202007, 6.433.1.21 KVy: . 527202007, 6.143.1.22 : ( -) .3.1.23 : , - . 527202007, 6.473.1.24 : - , - = 0+ mh
8、i, KKViVy=; KKVVy00=(m ;hi ). 527202007, 6.48 55508201343.1.25 : - , - = 01hi. 527202007, 6.493.1.26 FN, 2: , -, DN. DN1 DN2, FN FN1.3.1.27 22: , .3.1.28 hy: () , .3.1.29 hi: . 527202007, 6.173.1.30 hi: () .3.1.31 () : () .3.1.32 : - .3.2 : , ;Dc , ;DN ;DN1 ;DN2 ;D , ;FN , 2;FN1 , 2;FN2 , 2;G , / ( , /
